Please solve q20! Share with your friends Share 0 Mahi Aggarwal answered this hope it helps... plz upvote... 1 View Full Answer Deepak Singh answered this Please find this answer 0 Neeraja Nair answered this Let O be the centre of a circle and AB, CD be the two chords. Let PQ be the diameter bisecting chord AB and CD at L and M respectively. L is the mid- point of AB So OL ⊥ AB ⇒ ∠ALO = 90 ̊ Similarly, ∠CMO = 90 ̊ ∠ALO = ∠CMO = 90 ̊ ... co-interior angles are supplementary So AB ∥ CD. Hence proved. Hope this answer helps you. 0
